Würth
Webinar Date: June 10, 2026
Key Takeaways
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Learn why Würth Elektronik’s Proteus-IV and Ophelia-IV radio modules—equipped with a pre-built, standards-compliant Serial Port Profile (SPP-like) Bluetooth LE firmware are the pragmatic shortcut to a successful, ready-for-market wearable medical device.
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By reusing certified hardware, proven firmware and ready-to-use SDKs, engineering teams can focus on clinical value and user experience instead of wireless details.
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Achieve up to 75% faster integration and a much smoother path to regulatory approval.
Frequently Asked Questions
Is DTM implemented for Ophelia-IV? What about a test tool for receiver blocking testing? Is the QDID available for the Bluetooth SDK?
- Receiver blocking testing for certification is done in the test house they have the special tools to measure it. We can provide the software ““BLUETOOTH® DTM HCI GUI”” on request for premeasurement purposes. Please send an email to wcs@we-online.com to get the access of the tool. QDID is available for our products. The information about BLUETOOTH® Listing is available in Application Note: BLUETOOTH QUALIFICATION GUIDE
Does the Wuerth Elktronik BLE stack come with any evidence of validation to 62304 so it is not regarded as SOUP?
- The stack is nRF SDK stack from the Nordic semiconductor. Based on the information available on Nordic Semiconductor developers zone. This is not yet certified for EC 62304 but it can be achieved with SOUP in IEC 62304 process. Reference for this information is availabe here.
For the Proteus case, is the UART communication “AT command” style or not?
- The communication with Proteus-IV is command based, but not AT-command based. The commands we use provide high performant communication and data transmission, which is not possible with AT-commands. For evaluation of the module, we provide PC-software that helps sending these commands. For end device development, we have drivers in C-code implementing our command interface. You can refer to our SDK available on GitHub.
Are all your products waterproof?
- Radio products are not waterproof because it reduces RF and electrical performance of the product. This shall be done at the end device level.
You mention a UART-based SPP-like profile for Proteus-IV. How does that compare to implementing a custom GATT profile in terms of flexibility?
- Implementing the Custom GATT offers maximum flexibility, provided you have in-house expertise in BLE as well as the hardware platform of choice. When choosing the nrf54 platform, experience with the Zephyr RTOS (this has a steep learning curve) is mandatory. The Proteus-IV completely takes over the BLE handling offering the SPP-like profile so that you can focus on your application. The SPP-like profile still offers plenty of customization at the application level. If you need full customization at the software level.
What’s the maximum sustained data throughput achievable with Proteus-IV over BLE 6.0, and how does that hold up in a noisy hospital RF environment?
- The protues-IV module offers a peak end-to-end throughput of up to 473 Kbit/s. Here are a few test results from our tests.
Is the WirelessConnectivity SDK on GitHub production-ready, or is it primarily an evaluation/prototype tool? What level of long-term maintenance and support?
- The wireless connectivity SDK is fully-optimized for use in end-products. The examples are meant for evaluation. However, the drivers are production ready. We will support and maintain the SDK till the EoL of the product itself.
How to get started with developing custom firmware on the Opehlia-IV platform?
- In order to develop a custom firmware on the Ophelia-IV platform, we recommend the use of the nRF connect SDK that uses Zephyr RTOS. We have already integrated the Opehlia-IV board to the Zephyr platform. This should be available per drop-down when choosing the build configuration. Further details can be found in our application note.
- To get started, take a look at an example on our Github page.
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